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Vapour–liquid equilibria in the polymer + solvent system containing lower concentrations of solute at normal or reduced pressures

Vapour–liquid equilibria have been determined in the polymer + solvent systems, namely the poly(acrylic acid) + water, and poly(methyl methacrylate) + acetone system. Each system has been measured at three isothermal conditions. An all-glass microebulliometer with circulation of the liquid phase was used for measurements of total pressure over mixtures. The determined data were correlated with the UNIQUAC equation.

vapour–liquid equilibrium; experimental data; polymer–solvent system; correlation

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